I explained to him that I was having trouble with my eyes and needed to wear the dark glasses at all times.He believed me.
VOA: special.2009.12.26
So you recognize patterns and then develop a model, and most desirably a quantitative model A quantitative model that explains the observations, obviously.But what Mendeleev did was he came up with a model that not only explained what we observed.
所以你们得到这些模式,发展成一个模型,和最令人向往的定量模型,一个定量模型明显地解释所有的观察结果,但是门捷列夫做的是,他提出的模型不仅解释了,我们观察到的东西。
Fuller explained the word dymaxion as a method of doing more with less.
VOA: special.2010.05.30
Roberta Elias, with WWF explained "Since the 1970s, the western section of the stock, which is the US portion, has declined 82 percent."
VOA: standard.2010.03.04
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